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Copy pathMain.java
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98 lines (77 loc) · 2.89 KB
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import java.util.Scanner;
class Car {
private final String name;
private final int speed;
public Car(String name, int speed) {
this.name = name;
this.speed = speed;
}
public String getName() {
return name;
}
public int getSpeed() {
return speed;
}
}
class Race {
private static final int RACE_DURATION_HOURS = 24;
public Car findLeader(Car[] cars) {
Car leader = null;
int maxDistance = -1;
for (Car car : cars) {
int distance = car.getSpeed() * RACE_DURATION_HOURS;
if (distance > maxDistance) {
maxDistance = distance;
leader = car;
}
}
return leader;
}
}
public class Main {
private static final int MIN_SPEED = 1;
private static final int MAX_SPEED = 250;
private static final int CARS_COUNT = 3;
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Car[] cars = new Car[CARS_COUNT];
for (int i = 0; i < CARS_COUNT; i++) {
System.out.println("Автомобиль №" + (i + 1));
String name = readValidName(scanner);
int speed = readValidSpeed(scanner);
cars[i] = new Car(name, speed);
}
Race race = new Race();
Car winner = race.findLeader(cars);
System.out.println("Самая быстрая машина: " + winner.getName());
scanner.close();
}
private static String readValidName(Scanner scanner) {
while (true) {
System.out.print("Введите название автомобиля: ");
String name = scanner.nextLine().trim();
if (name.isEmpty()) {
System.out.println("Ошибка: название не может быть пустым. Попробуйте снова.");
} else {
return name;
}
}
}
private static int readValidSpeed(Scanner scanner) {
while (true) {
System.out.print("Введите скорость автомобиля (целое число от " + MIN_SPEED + " до " + MAX_SPEED + "): ");
if (scanner.hasNextInt()) {
int speed = scanner.nextInt();
scanner.nextLine();
if (speed >= MIN_SPEED && speed <= MAX_SPEED) {
return speed;
} else {
System.out.println("Ошибка: скорость должна быть от " + MIN_SPEED + " до " + MAX_SPEED + ". Попробуйте снова.");
}
} else {
System.out.println("Ошибка: нужно ввести целое число. Дробные значения не допускаются. Попробуйте снова.");
scanner.nextLine();
}
}
}
}